Gardner Denver Reavell 5236, Руководство по эксплуатации и техническому обслуживанию

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5236.MK2
COMPRESSOR
V14.0, En
7.5 SECOND STAGE VALVES
REMOVAL
As 7.3 A. i) except for removal of suction unloader pipework.
DISMANTLING
Remove and discard 'O' ring (7). Unscrew and remove nut (8) whilst holding the valve in a soft jawed
vice with just sufficient force to prevent it from turning. The valve can then be removed from the vice
and the upper valve body half (9) can be lifted clear of the stud. The delivery valve/backing plates (2),
delivery spring plates (3), suction valve spring plates (4) and suction valve plate (5) can then be
removed.
REASSEMBLY
Invert upper valve body (9) centrally on open vice jaws or a similar support.
Place suction valve plate (5) on the valve body, engaging locating slot with peg (6). Fit the suction
plate springs (4) with the angled arms pointing downwards and align with locating peg. Fit the first
delivery valve/backing plate into the recess in the upper valve body. Place delivery valve springs (3)
onto valve/backing plate having first positioned them as follows:
–
Assemble the delivery plate springs (3) in pairs, rotating one spring in each pair until the inner and
outer circumferences are matched perfectly.
Hold the two pairs of springs together with the concave faces facing each other and then rotate one
pair until their outer edges touch all round the circumference and there is a constant gap around the
inner edge.
Place second delivery valve/backing plate on valve springs ensuring the plates and springs are
correctly aligned, carefully assemble valve body halves by passing central stud of lower body (1)
through the centre of upper body, taking care not to disturb the plate and spring positions. Align hole in
lower body with peg (6) and carefully push the valve halves together.
Keeping the valve halves firmly engaged remove assembly from the support and fit nut (8). Tighten
nut to correct torque, check valve plates for free movement.
Lightly smear new 'O' ring (7) with silicon grease and fit to the upper valve body.
REFITTING
As 7.3 A. iv) except for replacement of suction unloader pipework.